Polarized Cosmological Gravitational Waves from Primordial Helical Turbulence
Astrophysics
2015-06-24 v2 General Relativity and Quantum Cosmology
Chaotic Dynamics
Fluid Dynamics
Abstract
We show that helical turbulence produced during a first-order phase transition generates circularly polarized cosmological gravitational waves (GWs). The characteristic frequency of these GWs for an extreme case of the phase transition model is around --- Hz with an energy density parameter as high as --- . The possibility of detection is briefly discussed.
Cite
@article{arxiv.astro-ph/0505628,
title = {Polarized Cosmological Gravitational Waves from Primordial Helical Turbulence},
author = {Tina Kahniashvili and Grigol Gogoberidze and Bharat Ratra and ;},
journal= {arXiv preprint arXiv:astro-ph/0505628},
year = {2015}
}
Comments
4 pages, 1 figure, references added, Phys. Rev. Lett. in press